53212787 has 8 divisors (see below), whose sum is σ = 56559360. Its totient is φ = 49920840.

The previous prime is 53212729. The next prime is 53212811. The reversal of 53212787 is 78721235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53212787 - 2¹⁸ = 52950643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53212487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11639 + ... + 15552.

It is an arithmetic number, because the mean of its divisors is an integer number (7069920).

Almost surely, 2^53212787 is an apocalyptic number.

53212787 is a deficient number, since it is larger than the sum of its proper divisors (3346573).

53212787 is a wasteful number, since it uses less digits than its factorization.

53212787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27313.

The product of its digits is 23520, while the sum is 35.

The square root of 53212787 is about 7294.7095212901. The cubic root of 53212787 is about 376.1306015112.

The spelling of 53212787 in words is "fifty-three million, two hundred twelve thousand, seven hundred eighty-seven".